Results 201 to 210 of about 23,149 (239)

Bridge scour protection

Scour and Erosion, 2016
Bridge scour protection appears to be increasingly needed to protect foundations from more extreme flooding events. However, the invert level at which the protection is installed can have a significant effect upon flow through bridges and associated flooding levels (Figs. 1 & 2).
M Hawkswood, M King
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Kentucky Bridge Scour Program

WRPMD'99, 1999
In 1995, the Kentucky Transportation Cabinet (KYTC) started working with Ogden Environmental and Energy Services (Ogden) to establish a risk assessment approach to analyze bridge scour. This program integrated the best ideas from other state scour programs, and the experiences of KYTC and Ogden.
W. Ron Gardner, James R. Stahl, Stephen R. Noe   +2 more
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Probabilistic Bridge Scour Estimates

Journal of Hydraulic Engineering, 1998
Scour at bridges is generally estimated as a deterministic value. Other loads at bridges, such as vessel impact and wind loads, are determined as probabilistic values. In an effort to use probabilistic estimates as a tool in decision making, a probabilistic framework was developed for estimating scour using deterministic methods given in the Hydraulic ...
Peggy A. Johnson, Daniel A. Dock
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Bridge Pier Scour Countermeasures

World Environmental and Water Resources Congress 2007, 2007
Local scour at bridge piers is a potential safety hazard to the traveling public and is a major concern for transportation agencies. Bridge pier scour is a dynamic process that varies with water depth, flow angle, pier geometry and other factors.
P. E. Clopper, P. F. Lagasse, L. W. Zevenbergen   +2 more
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Bridge’s Scour Monitoring System

2014
The scour of pier in riverbed is one of the major causes for bridge failure. The riverbed around the pier footing can be eroded in scouring event. Erosion of soil around the bridge foundation could lead to problems from instability of substructure to complete bridge failures.
Yuan Ping Luh, Ying Chang Liu
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Scour and scour countermeasures at bridge sites

Transactions of Tianjin University, 2008
This paper examines scour and scour countermeasures at bridge piers and abutments. Abutment scour is by far more complex than its counterpart associated with piers because of the possibility of the presence of a floodplain. Notwithstanding this, the mechanism of scour at both piers and abutments is very similar; moreover, the failure mechanisms ...
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Scour Vulnerability of River Bridge Piers

Journal of Geotechnical and Geoenvironmental Engineering, 2003
A simple procedure is proposed to assess the vulnerability of bridge piers in rivers, taking into account the phenomena governing fluvial dynamics during flood events. The procedure requires an estimation of the maximum scour depth of the soil surrounding both the pier and the foundation as well as an analysis of the bearing capacity of the pier ...
FEDERICO, FRANCESCO, SILVAGNI, GUGLIELMO, VOLPI, FABIO   +2 more
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Bridge Foundation Scour

2010
The Geotechnical Engineering Journal of the SEAGS & AGSSEA, 41, 2, pp 1 ...
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Comprehensive Bridge Scour Evaluation Methodology

Transportation Research Record: Journal of the Transportation Research Board, 2000
In the United States, bridge scour technology is discussed primarily in three FHWA publications: Hydraulic Engineering Circular (HEC) 18: Evaluating Scour at Bridges; HEC-2: Stream Stability at Highway Structures; and HEC-23: Bridge Scour and Stream Instability Countermeasures.
P. F. Lagasse, E. V. Richardson, L. W. Zevenbergen   +2 more
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Scour failure of bridges

Proceedings of the Institution of Civil Engineers - Forensic Engineering, 2012
In recent years there have been several bridge collapses in the United Kingdom and Republic of Ireland that have been caused by scour. Towns in the north west of England have been cut off and loss of life occurred. Major railway lines have been closed for extended periods.
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